11 verified septic companies across 3 cities in Yellowstone County. Compare ratings, services, and request free quotes from local providers.
Yellowstone County, Montana is home to 11 verified septic service companies listed across 3 cities in our directory, giving residents and property owners a range of local options for pumping, installation, inspection, and repair. The county sits in the Yellowstone River valley in south-central Montana, where a mix of urban lots in Billings, small-town properties in Laurel, and rural acreages in communities like Shepherd means septic needs vary considerably from one parcel to the next. The region's semi-arid climate brings cold winters with ground-freeze conditions that can affect system access and maintenance timing, making fall pumping and inspection a practical priority for many homeowners. Yellowstone County is Montana's most populous county, and the breadth of residential development here reflects decades of growth that has produced a diverse inventory of septic system ages and configurations throughout the area.
Shepherd, MT
⭐ 5.0 (171 reviews)
Andersen Sewer Service provides septic and sewer solutions in Yellowstone County, Montana and surrounding areas including Carbon County, Musselshell County, Stillwater County, and Bighorn County. Operating since 1984, the company offers septic pumping, septic system repairs, septic system installations and replacements, drainage services, and drain cleaning. They are licensed and fully insured, and were voted Best Sewer Service in 2025. The company serves both residential and commercial customer
Billings, MT
⭐ 5.0 (18 reviews)
URAPEEIN PORTA POTS is a local, family-owned business serving the greater Billings area, including Carbon County and segments of Stillwater County. While specializing in portable toilet rentals for events, industrial, and construction sites, they also provide essential septic services such as RV pumpouts and septic system filter maintenance. With 10 years of experience, URAPEEIN PORTA POTS is committed to serving and giving back to their community. They offer emergency calls and are available Monday to Friday from 7 am to 7 pm, and Saturday from 7 am to 4 pm, with Sunday services available as needed. Their dedication to quality and service ensures customers receive the best equipment and configurations for their specific needs, whether for a large event or a construction project.
Shepherd, MT
⭐ 4.9 (42 reviews)
Arrow Septic and Sewer Services, LLC provides septic and sewer services to residential and commercial properties in the Shepherd, Red Lodge, Billings, and Lockwood, Montana areas. The company serves Yellowstone County, Musselshell County, Golden Valley County, and Carbon County, including the communities of Huntley, Roundup, Laurel, Columbus, Absarokee, Fishtail, and Hardin. Services include septic tank installation, septic tank pumping, septic tank filter cleaning, grease trap pumping, drain fi
Laurel, MT
⭐ 4.8 (485 reviews)
Cotter's Sewer Inc. provides plumbing, drain cleaning, septic pumping, and portable toilet services in Billings, Montana and surrounding areas. The company offers septic pumping, drain cleaning services, and portable toilet rentals. They provide 24/7 emergency services for urgent plumbing and septic needs. Cotter's Sewer Inc. operates with a focus on prompt, reliable, and professional service while prioritizing customer interests.
Billings, MT
⭐ 4.7
Benjamin Franklin Plumbing Billings provides plumbing services in the Billings area and was named Forbes' Top Ranked Plumbing Company of 2024. The company offers residential and commercial plumbing services including emergency plumbing, drain cleaning, hydrojetting, and leak detection. Their service offerings include installation and repair of bathtubs, boilers, faucets, garbage disposals, showers, sinks, and toilets. They handle piping and repiping projects, including frozen and leaking pipes.
Laurel, MT
⭐ 5.0 (13 reviews)
Brenda Frank Septic Tank Service is a highly-rated septic service provider based in Laurel, Montana. With a perfect 5.0 Google rating from 13 customer reviews, the company has established a strong reputation for reliable and professional service. Specializing in septic tank maintenance, repairs, and related services, Brenda Frank Septic Tank Service serves the local Laurel area and surrounding communities. The consistently positive customer feedback reflects the company's commitment to quality workmanship and customer satisfaction in the septic service industry.
Billings, MT
⭐ 4.9 (1709 reviews)
Roto-Rooter Plumbing & Drain Cleaners operates in Billings, Montana, providing plumbing and drain services. The company has been in business for over 90 years, established in 1935. They offer 24/7 emergency plumbing services available nights, weekends, and holidays with no extra charges for after-hours calls. Their service lineup includes plumbing and drain repairs, water damage restoration with state-of-the-art water extraction and cleanup equipment, and water heater repair and replacement for
Billings, MT
⭐ 4.9 (78 reviews)
TLC - Patriot Septic and Excavation is a septic service provider based in Billings, Montana, specializing in septic system installation, maintenance, and repair. With a strong reputation in the local community, the company has earned a Google rating of 4.9 stars based on 77 customer reviews, reflecting consistent customer satisfaction and quality workmanship. The team at TLC - Patriot Septic and Excavation brings professional expertise and reliable service to residential and commercial septic needs throughout the Billings area.
Billings, MT
⭐ 4.2 (5 reviews)
# Bangert Construction & Excavation Bangert Construction & Excavation is a full-service construction company based in Billings, Montana, serving Yellowstone County and surrounding areas since 2008. The family-owned business specializes in general contracting, design-build, and construction management with particular expertise in agricultural construction, repairs, and maintenance. Their service offerings include septic systems installation and maintenance, underground utilities, foundations and basements, roads and driveways, buildings and structures, and equipment hauling. Founded by Loren with decades of farming and ranching experience, the company combines traditional craftsmanship with technical expertise on Montana-specific construction projects. Bangert Construction & Excavation is licensed, bonded, and insured, and operates with a commitment to honesty, integrity, and personalized service. Rather than coordinating multiple contractors, clients benefit from the company's full project management approach. The business maintains a 4.2 Google rating and emphasizes straightforward communication and dependable workmanship across all projects.
Laurel, MT
⭐ 4.1 (7 reviews)
Schessler Excavation & Septic is a family-owned excavation and septic company serving Laurel, Billings, Red Lodge, Columbus, and surrounding areas in Montana. The company has over 65 years of experience specializing in septic systems, cistern installations, and septic service for both residential and commercial clients. Their septic services include designing, installing, and maintaining septic tank systems, certified septic inspections, and sewage pump replacement. Excavation services encompass
Billings, MT
⭐ 3.8 (14 reviews)
C Bar J Mechanical is a septic service provider based in Billings, Montana, offering maintenance and repair solutions for residential and commercial septic systems. With a Google rating of 3.8 stars based on 14 customer reviews, the company has established a presence in the local market. C Bar J Mechanical serves the Billings area with a focus on septic system care and related mechanical services. Those seeking septic tank pumping, inspections, or repairs in the region can contact the company to discuss their specific needs and service options.
Yellowstone County's septic landscape reflects the county's broad mix of development patterns. Billings, as Montana's largest city, contains many older neighborhoods where homes were built before municipal sewer lines expanded, leaving pockets of residential properties still reliant on on-site septic systems. Outlying areas around Laurel and Shepherd tend to feature larger lots and rural acreages where septic systems remain the primary wastewater solution. Gravity-fed systems are common on properties with suitable slope and soil conditions, while pump-up and pressure-distribution systems are used where topography or soil permeability makes gravity flow impractical. The region's clay-heavy soils in some areas can limit drain field absorption, influencing both system design and maintenance frequency. Montana's cold winters also mean that shallow system components can be vulnerable to freezing, and seasonal inspection before temperatures drop is a consideration many county property owners take seriously.
Septic system permits and oversight in Yellowstone County fall under the jurisdiction of the Yellowstone City-County Health Department, which administers regulations in alignment with Montana state standards set by the Montana Department of Environmental Quality. Property owners are generally required to obtain a permit before installing a new septic system or making significant modifications to an existing one. A licensed site evaluator typically conducts a soil analysis and site assessment as part of the permitting process to ensure the system design suits local conditions. Point-of-sale inspections are common practice in Montana real estate transactions, and many lenders require a septic inspection before closing on a property served by an on-site system. Homeowners can find applicable regulations and permit applications through the Yellowstone City-County Health Department's environmental health division. Always verify current requirements with your local health department.
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